4 files changed, 40 insertions, 12 deletions
diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
index 512e193..d3f399b 100644
--- a/src/corelib/kernel/qcoreapplication.cpp
+++ b/src/corelib/kernel/qcoreapplication.cpp
@@ -2091,7 +2091,8 @@ QStringList QCoreApplication::arguments()
                 l1arg == "-stylesheet" ||
                 l1arg == "-widgetcount")
                 ;
-            else if (l1arg.startsWith("-style="))
+            else if (l1arg.startsWith("-style=") ||
+                     l1arg.startsWith("-qmljsdebugger="))
                 ;
             else if (l1arg == "-style" ||
                      l1arg == "-session" ||
diff --git a/src/declarative/debugger/qdeclarativedebugservice.cpp b/src/declarative/debugger/qdeclarativedebugservice.cpp
index 1bbfcf4..1f2bf4f 100644
--- a/src/declarative/debugger/qdeclarativedebugservice.cpp
+++ b/src/declarative/debugger/qdeclarativedebugservice.cpp
@@ -49,6 +49,8 @@
 #include <QtCore/qstringlist.h>
 
 #include <private/qobject_p.h>
+#include <private/qapplication_p.h>
+#include <QtGui/qapplication.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -147,24 +149,41 @@ bool QDeclarativeDebugServer::hasDebuggingClient() const
 
 QDeclarativeDebugServer *QDeclarativeDebugServer::instance()
 {
-    static bool envTested = false;
+    static bool commandLineTested = false;
     static QDeclarativeDebugServer *server = 0;
 
-    if (!envTested) {
-        envTested = true;
-        QByteArray env = qgetenv("QML_DEBUG_SERVER_PORT");
-        QByteArray block = qgetenv("QML_DEBUG_SERVER_BLOCK");
+    if (!commandLineTested) {
+        commandLineTested = true;
 
+#ifndef QDECLARATIVE_NO_DEBUG_PROTOCOL
+        QApplicationPrivate *appD = static_cast<QApplicationPrivate*>(QObjectPrivate::get(qApp));
+        // ### remove port definition when protocol is changed
+        int port = 0;
+        bool block = false;
         bool ok = false;
-        int port = env.toInt(&ok);
 
-        if (ok && port > 1024) {
-            server = new QDeclarativeDebugServer(port);
-            server->listen();
-            if (!block.isEmpty()) {
-                server->waitForConnection();
+        // format: qmljsdebugger=port:3768[,block]
+        if (!appD->qmljsDebugArguments.isEmpty()) {
+
+            if (appD->qmljsDebugArguments.indexOf(QLatin1String("port:")) == 0) {
+                int separatorIndex = appD->qmljsDebugArguments.indexOf(QLatin1Char(','));
+                port = appD->qmljsDebugArguments.mid(5, separatorIndex - 5).toInt(&ok);
+            }
+            block = appD->qmljsDebugArguments.contains(QLatin1String("block"));
+
+            if (ok) {
+                server = new QDeclarativeDebugServer(port);
+                server->listen();
+                if (block) {
+                    server->waitForConnection();
+                }
+            } else {
+                qWarning(QString("QDeclarativeDebugServer: Ignoring \"-qmljsdebugger=%1\". "
+                                 "Format is -qmljsdebugger=port:<port>[,block]").arg(
+                             appD->qmljsDebugArguments).toAscii().constData());
             }
         }
+#endif
     }
 
     return server;
diff --git a/src/gui/kernel/qapplication.cpp b/src/gui/kernel/qapplication.cpp
index 2fd2f46..43d5772 100644
--- a/src/gui/kernel/qapplication.cpp
+++ b/src/gui/kernel/qapplication.cpp
@@ -494,6 +494,7 @@ bool QApplicationPrivate::fade_tooltip = false;
 bool QApplicationPrivate::animate_toolbox = false;
 bool QApplicationPrivate::widgetCount = false;
 bool QApplicationPrivate::load_testability = false;
+QString QApplicationPrivate::qmljsDebugArguments;
 #ifdef QT_KEYPAD_NAVIGATION
 #  ifdef Q_OS_SYMBIAN
 Qt::NavigationMode QApplicationPrivate::navigationMode = Qt::NavigationModeKeypadDirectional;
@@ -565,6 +566,8 @@ void QApplicationPrivate::process_cmdline()
         QString s;
         if (arg == "-qdevel" || arg == "-qdebug") {
             // obsolete argument
+        } else if (arg.indexOf("-qmljsdebugger=", 0) != -1) {
+            qmljsDebugArguments = QString::fromLocal8Bit(arg.right(arg.length() - 15));
         } else if (arg.indexOf("-style=", 0) != -1) {
             s = QString::fromLocal8Bit(arg.right(arg.length() - 7).toLower());
         } else if (arg == "-style" && i < argc-1) {
@@ -670,6 +673,9 @@ void QApplicationPrivate::process_cmdline()
             Qt::RightToLeft
         \o  -graphicssystem, sets the backend to be used for on-screen widgets
             and QPixmaps. Available options are \c{raster} and \c{opengl}.
+        \o  -qmljsdebugger=, activates the QML/JS debugger with a specified port.
+            The value must be of format port:1234[,block], where block is optional
+            and will make the application wait until a debugger connects to it.
     \endlist
 
     The X11 version of Qt supports some traditional X11 command line options:
diff --git a/src/gui/kernel/qapplication_p.h b/src/gui/kernel/qapplication_p.h
index 8dc16e0..aa3a6d5 100644
--- a/src/gui/kernel/qapplication_p.h
+++ b/src/gui/kernel/qapplication_p.h
@@ -446,6 +446,8 @@ public:
     static bool animate_toolbox;
     static bool widgetCount; // Coupled with -widgetcount switch
     static bool load_testability; // Coupled with -testability switch
+    static QString qmljsDebugArguments; // a string containing arguments for js/qml debugging.
+
 #ifdef Q_WS_MAC
     static bool native_modal_dialog_active;
 #endif